1、Unit 10Period OneGrammar FocusThe Past Perfect Tense过去完成时过去完成时Grammar Focus(P77)2.2.过去完成时可以表示过去完成时可以表示过去过去某一时刻某一时刻 或某一动作或某一动作之前之前完成的动作完成的动作或或呈现呈现 的状态的状态。也就是说发生在。也就是说发生在“过去的过去过去的过去”1.过去完成时过去完成时 构成构成：hadhad过去分词过去分词 By the time I got to school,the bell had rung.=when 当当的时候的时候 I got to school.now8:007:3
2、0amThe bell rang.当我到学校时，上课铃当我到学校时，上课铃已经已经响响了了My mom came back.now9:00am8:00amI cleaned up the yard.By the time my mom came back,I had cleaned up the yard.8:00am9:00amnowBy the time she went outside,the bus had left.She went outside.The bus left.the policeman get to the shop.Tom run away.By the time
3、the policeman got to the shop,Tom had run away.now5:00pm6:00pmBy the time Liu Mei woke up,the concert had been over.now8:00pm8:15pmThe concert was over.Liu Mei woke up.By the time his grandmother died,Li Ming had grown up.200820062007Li Ming grew up.His grandmother died.6:00 7:00 现在现在 By the time I
4、got up,my sister had already washed all the clothes.By the time 到到.的时候的时候By the time I got home,By the time I came in,By the time I got to school,By the time the bell rang,By the time I got up,完成下列句子完成下列句子过去完成时的用法：过去完成时的用法：1 1、表示过去的过去，通常由、表示过去的过去，通常由whenwhen，byby或或beforebefore引导的短语或者从句引导的短语或者从句(要用要用
5、一般过一般过去时去时)做时间状语做时间状语 By the end of last year,I had learned about one thousand English words.By the time he was twenty,he had won about ten medals.When I got there,they had already left.We had finished our lunch before he came.2 2、常用在宾语从句中、常用在宾语从句中 He He toldtold me he me he had had already already
6、finished finished his homework.his homework.I I realizedrealized he he had fooledhad fooled me again.me again.现在完成时现在完成时与与过去完成时过去完成时的区别的区别1.She has taught English for 6 years.2.She has lived in America since 2002.表示过去某时表示过去某时发生的动作，发生的动作，这动作可能刚这动作可能刚刚停止刚停止,也可能也可能还在进行还在进行。1.She said she had taught Eng
7、lish for 6 years.2.By the time I got to London,she had gone to America.表示过去某时之表示过去某时之前发生的动作前发生的动作,现现在在已经停止已经停止。I have been at school since 8:00am.I was at school.now7:30am7:00amThe bell is ringing.现在完成时现在完成时过去完成时过去完成时now9:00am7:30am8:00amThe bell rang.I got to school.By the time I got to school,the
8、bell had rung.1.We _(learn)two thousands words by the end of last year.3.When we _(arrive)at the station,they _(wait)for more than twenty minutes.had learnedarrivedhad waited2.I _(know)him when I was a student.had known4.One of the men couldnt move,because he _(break)his legs.had broken5.Father told
9、 me that he _(write)a new book.6.Mother _(have)breakfast before seven oclock that morning.7.By the end of last week,we _(learn)50 English songs.8.The teacher said he _ never _(make)such a foolish mistake before.had writtenhad hadhad learnedhad made9.Mr Smith _(teach)Japanese at this school since 199
10、9.10.Li Hong _(search)the Internet for two hours before she found what she wanted.had searchedhas/had taughtTranslation1.我到家时她已经睡了。我到家时她已经睡了。By the time I got home,she had already gone to bed.2.到黄昏时消息已传遍全球。到黄昏时消息已传遍全球。By dusk the news had spread through the world.3.他走以后我找到了那封信。他走以后我找到了那封信。I found th
11、e letter after he had gone away.We reached the cinema late.The film had already begun.4.我们到电影院晚了我们到电影院晚了,电影已经开始了。电影已经开始了。5.我们发现有人把我们的窗户打破了。我们发现有人把我们的窗户打破了。We found that somebody had broken our window.I soon realized that I had made a serious mistake.6.不久我意识到自己犯了一个严重的不久我意识到自己犯了一个严重的错误。错误。7.我没有去，因为我已看过这部电影。我没有去，因为我已看过这部电影。I didnt go because I had already seen the film.After he checked out all the information,he believed his daughter had made a good decision.8.他查看了所有的信息后，相信女儿他查看了所有的信息后，相信女儿的选择是对的。的选择是对的。
